A broadened definition of what constitutes a planet will be proposed next month, one that would include planets existing beyond our solar system.
Source : Astronomers Push to Redefine ‘Planet’—but Pluto Is Still Left Out
A broadened definition of what constitutes a planet will be proposed next month, one that would include planets existing beyond our solar system.
Source : Astronomers Push to Redefine ‘Planet’—but Pluto Is Still Left Out
